Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10
A comet's tail always points away from the sun.
2
Pluto is smaller than Russia.
9
Sound doesn't travel in space.
255
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11
The earth rotates more slowly on its axis in March than in September.
145